Freedom of Information Request Mexico (Solicitud de Acceso a la Información Pública)

A Freedom of Information Request Mexico (Solicitud de Acceso a la Información Pública) is the formal petition submitted by any person — Mexican or foreign, natural or legal entity — to a government body (sujeto obligado) requesting disclosure of public information (información pública) held by that body. The right to access government information is a constitutional right under Article 6 of the Constitución Política de los Estados Unidos Mexicanos as amended on 20 July 2007, and is regulated by the Ley General de Transparencia y Acceso a la Información Pública (LGTAIP), published in the Diario Oficial de la Federación on 4 May 2015, together with the Ley Federal de Transparencia y Acceso a la Información Pública (LFTAIP), published in the DOF on 9 May 2016.

The constitutional reform of 2007 elevated the right of access to information to the status of a fundamental human right (derecho humano fundamental) in Mexico — one of the most progressive information rights frameworks in Latin America. Article 6 of the Constitución establishes the following principles that bind all government levels in Mexico: all information held by government bodies is presumptively public (toda la información en posesión de cualquier autoridad es pública); no person must justify or explain the reasons for requesting public information (no se requiere justificación); exceptions to disclosure are narrow, exhaustive, and must be proportionality-tested; and personal data collected by government bodies must be protected under the privacy principles established by the Ley General de Protección de Datos Personales en Posesión de Sujetos Obligados (LGPDPPSO), published in the DOF on 26 January 2017.

The LGTAIP governs the disclosure obligations of all sujetos obligados (obligated subjects) — a broad category that includes: all three branches of the federal government (Poder Ejecutivo Federal, Poder Legislativo, and Poder Judicial); all federal autonomous constitutional bodies (órganos constitucionales autónomos) including the INE, INAI, IFETEL, COFECE, Banco de México, CNDH, and others; all state and municipal governments; public universities (universidades públicas); and any private entity receiving public funding (recursos públicos) or performing public functions under Article 2 LGTAIP. Political parties (partidos políticos) registered with the INE are also sujetos obligados for information about their public financing and campaign expenditures.

The Plataforma Nacional de Transparencia (PNT) at plataformadetransparencia.org.mx is the federal government's centralized digital platform for submitting, tracking, and receiving responses to transparency requests. The PNT integrates the information systems of all federal sujetos obligados and many state-level entities — replacing the predecessor INFOMEX system. Requests can also be submitted directly at the sujeto obligado's Unidad de Transparencia (transparency office) in person. The Instituto Nacional de Transparencia, Acceso a la Información y Protección de Datos Personales (INAI) is Mexico's federal autonomous oversight body with constitutional status (órgano garante), responsible for reviewing refusals and issuing binding resolutions requiring disclosure — INAI decisions are final at the administrative level and can only be challenged through amparo judicial review before federal courts.

Article 1 LGTAIP establishes the law's fundamental objectives: to maximize the availability of public information to promote accountability (rendición de cuentas) and democratic participation; to prevent and combat corruption through transparency; and to protect personal data in government possession. Articles 2 and 3 LGTAIP define key terms and establish the principle of maximum disclosure (máxima publicidad) — any doubt about whether information is disclosable must be resolved in favor of disclosure under the pro-disclosure principle.

A Freedom of Information Request Mexico under the Ley General de Transparencia y Acceso a la Información Pública is needed whenever any person — citizen, journalist, researcher, business, or foreign national — wishes to access specific information held by a Mexican government body that is not already published in the body's transparency portal (portal de obligaciones de transparencia).

The solicitud de acceso a la información pública is required when a citizen wishes to obtain government contracts (contratos gubernamentales) entered into by federal or state agencies — including procurement contracts (contratos de licitación pública), public works contracts (contratos de obra pública), and concession agreements (contratos de concesión). Under Article 70 Section XXVI LGTAIP, government agencies are required to proactively publish contracts above certain thresholds on their transparency portals, but lower-value contracts and contract amendments are frequently only accessible through a formal transparency request.

The request is needed when a journalist, civil society organization, or academic researcher requires information about government expenditure, public official salaries, travel expenses, expense reports, or the use of discretionary funds (fondos discrecionales) by public agencies. Mexico's transparency framework is a primary tool for investigative journalism — organizations such as Mexicanos Contra la Corrupción y la Impunidad (MCCI) and Animal Político rely extensively on transparency requests to document government corruption, budget misuse, and conflicts of interest.

A freedom of information request is needed when a property owner, developer, or attorney requires access to urban development plans (planes de desarrollo urbano), zoning maps (mapas de uso de suelo), building permit records (licencias de construcción), or environmental impact assessments (manifestaciones de impacto ambiental — MIAs) held by municipal or state government. These documents are essential for real estate due diligence, construction planning, and environmental compliance review but are not always published on government portals in accessible formats.

The solicitud is required when a person wishes to verify information about a government-regulated activity — a COFEPRIS operating license (licencia sanitaria) for a food business, a SEMARNAT environmental authorization (autorización ambiental), a CONAGUA water concession (título de concesión de aguas nacionales in the REPDA), or a CNH oil and gas exploration license (contrato CNH). While some of these records are published in official registries, accessing the full file (expediente completo) requires a formal transparency request.

FOI requests are needed when a party in litigation or administrative proceedings wishes to obtain government records that may be relevant to their case — for example, an inspection report (acta de inspección) by the PROFEPA, IMSS, or STPS; a police incident report (informe de la policía); a CONAGUA technical opinion about aquifer availability; or the working papers underlying a INFONAVIT credit denial. Article 6 of the Constitución confirms that the right of access to information may be exercised regardless of any parallel legal proceedings — a transparency request is not an alternative to formal discovery mechanisms but a complementary tool for accessing government-held information.

FOI requests are completely free of charge except for the cost of reproducing the information (derechos de reproducción) when a physical copy is requested rather than a digital version. Any person can file a request without justification, without a lawyer, and without disclosing their identity if they choose to file anonymously through the PNT platform.

A valid Freedom of Information Request Mexico under Ley General de Transparencia arts. 1–3 and Ley Federal de Transparencia arts. 40–47 must contain the following elements to be accepted by the sujeto obligado's Unidad de Transparencia and to trigger the statutory twenty-working-day response deadline.

Identification of the Sujeto Obligado: The full official name of the government body to which the request is directed — for example, Secretaría de Medio Ambiente y Recursos Naturales (SEMARNAT), Instituto Mexicano del Seguro Social (IMSS), Comisión Nacional del Agua (CONAGUA), or the specific municipality (H. Ayuntamiento de [city name]). For federal bodies, requests should be directed to the specific administrative unit (unidad administrativa) that is most likely to hold the requested information — the LFTAIP allows the Unidad de Transparencia to redirect internally if the initial designation is incorrect, but directing to the right unit reduces processing time.

Requester Identification (Optional): Under Article 40 LFTAIP and Article 6 of the Constitución, the requester is not obligated to identify themselves — anonymous requests are fully valid and the sujeto obligado cannot require identification as a condition of processing the request. However, if the requester wishes to receive the response at a physical address or email, providing contact information is necessary. For requests filed through the PNT platform, a user account (which requires email registration) is used but the requester's identity is not disclosed to the sujeto obligado if the anonymous option is selected.

Description of the Information Requested: A clear, specific, and sufficiently detailed description of the information being requested (descripción de la información solicitada). Under Article 124 LGTAIP, if the request is unclear or insufficiently specific, the Unidad de Transparencia must notify the requester within five working days requesting clarification — this clarification notice suspends the twenty-day response clock until the requester responds. Best practice is to specify: the document type (tipo de documento — contrato, acta, licencia, informe, etc.), the time period covered (período temporal), the specific subject matter (tema específico), and any known reference numbers or identifying information. Avoid extremely broad requests covering years of records or entire subject matter files — these are more likely to generate partial responses or extensions.

Preferred Format and Delivery Method: Under Article 129 LGTAIP, requesters may specify the preferred format for receiving the information — digital format (formato digital via email or download from the PNT platform), physical paper copies (copias físicas), or inspection of records at the sujeto obligado's offices (consulta directa). Digital delivery is free; paper copies incur a nominal reproduction fee (derechos de reproducción) under the Ley Federal de Derechos. When requesting digital copies of documents originally issued in digital format (such as electronic contracts or SAT CFDIs), requesting digital format is both more efficient and free of charge.

PNT Folio Number or Physical Receipt: All requests filed through the Plataforma Nacional de Transparencia (PNT) receive an automatic folio number (número de folio) — this is the primary reference for tracking the request, filing complaints with INAI if the response is unsatisfactory, and pursuing the recurso de revisión. Requests filed in person at the Unidad de Transparencia must be given a written receipt (acuse de recibo) with a reference number by the receiving officer under Article 125 LGTAIP. The requester should preserve the folio or receipt number throughout the process.

Information About Applicable Deadlines: Under Articles 132 through 135 LGTAIP, the sujeto obligado has twenty working days (días hábiles) to respond to a transparency request. This period may be extended by ten additional working days with justified cause — the sujeto obligado must notify the requester of the extension before the original deadline expires. If the sujeto obligado classifies the requested information as confidential (información confidencial — personal data of third parties) or reserved (información reservada — national security, ongoing investigations, commercial secrets), it must provide a classifying resolution (resolución de clasificación) explaining the legal basis and the test of proportionality applied under Articles 100 through 120 LGTAIP.

Recurso de Revisión (Appeal) Rights: If the requester is unsatisfied with the response — because the information was denied, incomplete, incomprehensible, or not provided in the requested format — they may file a recurso de revisión (review appeal) with INAI (for federal sujetos obligados) or the corresponding state órgano garante (for state and municipal bodies) within fifteen working days of receiving the response, at no charge. INAI must resolve the recurso de revisión within forty working days under Article 152 LGTAIP and may order the sujeto obligado to disclose the information.

Forms-legal.com provides this Freedom of Information Request Mexico template as a practical tool for citizens, journalists, researchers, and legal practitioners exercising the constitutional right to access government information. No justification, professional credentials, or legal representation is required to file a transparency request — the right is universal and free. For complex multi-year information requests, appeals of classification decisions, or strategic use of transparency requests in litigation support, consulting a specialist in transparency law or a civil society organization with FOI expertise (such as ARTICLE 19 México or Fundar Centro de Análisis e Investigación) is recommended.